— Groups of six letters that combine with another letter for a valuable seven-letter word are called bingo stems. SATINE, SATIRE AND RETINA are considered the best bingo stems.

— "The Official Scrabble Players Dictionary," released Monday from Merriam-Webster, was the first update in a decade and added 5,000 words including bromance, selfie and two-letter words like po, da and gi.

— Playable Scrabble words must be found in a standard dictionary, can't require capitalization, can't have hyphens or apostrophes and can't be an abbreviation.

— Scrabble was inducted into the National Toy Hall of Fame in 2004.

— Hasbro Inc. sells 2 million copies annually in the United States.

— The North American Scrabble Players Association counts 151 active sanctioned clubs in North America.

— The highest word score recorded in a sanctioned NASPA tournament was braziers, which earned T.A. Sanders 311 points in 1997 in Tyler, Texas.